<template>
 <div>
    <div class="search">
        <input 
            v-model="keyword" 
            class="search-input" 
            type="text" 
            placeholder="输入城市名或昵称">
    </div>
    <div class="search-content" ref="search" v-show="keyword">
        <ul>
            <li class="search-item border-bottom" v-for="item in list" @click="hadleCityClick(item.name)">{{item.name}}</li>
            <li class="search-item border-bottom" v-show="hasNoData" >没有找到匹配数据</li>
        </ul>
    </div>
 </div>

</template>

<script type="text/ecmascript-6">
import Bscroll from "better-scroll"
import {mapState , mapMutations} from 'vuex'
 name:"CitySearch"
 export default {
    data () {
        return {
            keyword:'',
            list:[],
            timer:null,
        }
    },
    props: {
        cities:Object
    },
    components: {

    },
    computed:{
        hasNoData(){
            return !this.list.length
        }
    },
    methods:{
         hadleCityClick(city){
            //this.$store.dispatch('changeCity',city)
            //this.$store.commit('changeCity',city)
            this.changeCity(city)
            this.$router.push('/')
        },
        ...mapMutations(['changeCity'])
    },
    watch:{
        keyword(){
            if(this.timer){
                clearTimeout(this.timer)
            }
            if(!this.keyword){
                this.list=[]
                return 
            }
            this.timer = setTimeout(()=>{
                const result = []
                for(let i in this.cities){
                    this.cities[i].forEach(value => {
                        if(value.spell.indexOf(this.keyword) >-1 || value.name.indexOf(this.keyword) >-1){
                            result.push(value)
                        }
                    });
                }
                this.list = result
            },100)
        }
    },
    mounted(){
        this.scroll = new Bscroll(this.$refs.search)
    }
 }
</script>

<style lang="stylus" scoped>
    @import '~styles/varibles.styl'
    .search
        height :.72rem
        padding :0.1rem
        background :$bgColor
        .search-input
            box-sizing :border-box
            width: 100%
            height: 0.62rem
            padding:.1rem
            line-height :.62rem
            text-align :center
            border-radius:.06rem
    .search-content
        overflow :hidden
        z-index:1
        position :absolute
        top:1.68rem
        left 0
        right 0
        bottom:0
        background:#eee
        .search-item
            line-height :.62rem
            padding-left .2rem
            color :#666
            background :#fff


</style>
